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CVE-2026-55118 is a high-severity improper access control vulnerability in the UniFi Network Application. According to the provided content, a malicious actor with network access and low privileges can, under certain conditions, exploit the flaw to escalate privileges within the UniFi Network Application. The issue is described as remotely exploitable and affects UniFi Network Application version 10.3.58 and earlier. Patched versions are identified as 10.4.57 and later. No vulnerable function, endpoint, or code path is specified in the provided material.
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What an attacker gets, and what they’ve been doing with it.
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No public exploit code observed for this vulnerability.
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8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A high-severity improper access control vulnerability in UniFi Network Application.
An improper access control privilege escalation vulnerability in UniFi Network Application that could allow a low-privileged attacker with network access, under certain conditions, to escalate privileges within the application.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.